jardins do palacio de cristal gardens in downtown of porto portugal

alley architecture area artwork attraction background beautiful blue botany branches bushes city cristal culture daytime decoration design destination details downtown europa european exterior famous flowers fountain fresh gardens grass green heritage historical history jardins july landmark landscape lawn leaves natural nature old ornate palacio park path place porto portugal portuguese public roses scene scenic sculpture sightseeing site sky stone structure tour tourism touristic town travel trees trip unesco urban vegetation view world